In everyones opinion, which piston is stronger, the stock 95 cast piston or the sealed power H675P hypereutectic piston. when comparing the 2 pistons, the stock one looks thicker in the walls & has more material around the pin area than the sp piston. But the sp piston is a hypereutectic alloy making it stronger dispite the less material??? Has anyone used and or blown these up & at what horsepower you have. Thanks!